pp1.5 comment e-mail notification stopped working

[kvdv]

I'm using PixelPost 1.5, everything was working fine until today: e-mail notification when someone has posted a comment stopped working. I can see the comments on the site, but i receive no e-mail. What can i do? How can i check?

Thanks!
Kris

[kvdv]

I found the notifications: they're in my gmail spam folder!
The strange thing is that i'm auto labeling all pixelpost comments, and this is working because i can see the label in front of the subject, but... after the labeling they are put in the spam folder nonetheless! I can mark them as 'not junk' but the next comment will be in the spam again. Is this a known issue with gmail?